Motionless Generator (Bearden/Flynn/Witts/Naudin/magnacoaster)

[Jdo300]

In general, as long as you don't saturate the core, then the shape is not too important, though the internal flux distribution for square cores will obviously be a bit different. In practice, I wouldn't be too concerned about that though for a proof-of-concept design. Are you planning to use that core for an MEG driven by a JT?

- Jason O

[d3x0r]

not entirely sure how I'd drive it... once it was started, I thought it was self driving actually.

[Paul-R]

That wire looks to me like steel fencing wire, as opposed to iron fencing wire.
Why do you reckon it is iron?

[d3x0r]

actually it's neither
http://www.homedepot.com/Building-Materials-Concrete-Cement-Masonry-Forming-Products/h_d1/N-5yc1vZbay2/R-202532364/h_d2/ProductDisplay?catalogId=10053

it's rebar tie wire, although strongly magnetic (stronger attraction to a magnet than a ferrite core).. researching what the composition is